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Summary of Contents for Cirs 069A
- Page 1 Model 069A USER GUIDE 900 Asbury Ave • Norfolk, Virginia 23513 • USA • Tel: 757-855-2765 • WWW.CIRSINC.COM...
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Page 3: Table Of Contents
Table of Contents Overview ................................3 Instructions for Use ..............................4 Handling and Care ...............................4 Testing Procedures ..............................7 Sensitivity (Depth of Penetration) ........................7 Velocity Accuracy .............................9 Angle Error Test ..............................9 Specifications ..............................10 ZERDINE® ................................ 11 Appendix 1: Conversion of Flow Rate to Flow Velocity ....................13 Warranty ................................ -
Page 4: Overview
Doppler Fluid to perform quality assurance testing of Doppler ultrasound devices. When use in conjunction with the CIRS Doppler Flow Pump (Model 769) it will mimic the acoustic properties of blood flow and may be used to perform quality assurance testing of Doppler ultrasound devices in compliance with IEC61685. -
Page 5: Instructions For Use
DO NOT press on the scanning surface with your fingernails or any other sharp objects. If the scanning surface becomes damaged, seal the phantom in an airtight container and IMMEDIATELY contact CIRS for return authorization. Call 800-617-1177, email at rma@cirsinc.com or fax RMA Request form to 757- 857-0523. - Page 6 Regulations regarding disposal of materials with trace acrylamide monomer vary by locality. Contact your local authority for instructions. If assistance is desired in the proper disposal of this product, including accessories and components, after its useful life, please return to CIRS.
- Page 7 Handling and Care The phantom may be stored with the rest of the flow circuit connected, so long as the pump is used often. If you do not anticipate further testing for several weeks, we recommend purging the circuit of blood mimicking fluid to prevent particle agglomeration.
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Page 8: Testing Procedures
TESTING PROCEDURES Below is a description of the three most common Doppler ultrasound performance tests that may be conducted with this phantom: sensitivity, velocity accuracy and angle error. Additional Doppler performance tests of interest are described in detail in the following references. 1 . - Page 9 This pair of images shows cross section of tube 1 in color flow mode while be imaged at 10 MHz with a linear array probe . The first image shows a clear color flow image at a depth of 2 cm . When moving the transducer down the length of the tube, the color flow image disappears at a depth of 4 .5 cm .
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Page 10: Velocity Accuracy
VELOCITY ACCURACY 1 . Set flow pump so that the average flow velocity is 20 cm/s. See “Pump Calibration” (page 11) for instructions on converting volume flow rate to average flow velocity. 2 . To ensure laminar flow, the scan region should be placed outside the minimum entrance length (>6 cm at maximum flow velocity). -
Page 11: Specifications
Doppler corrected Doppler relative -(90°-probe) For linear transducers, the measurement will usually not be required since the probe angle will be perpendicular. For curved transducers, it will be necessary to measure the probe angle for each measurement. An example of a Doppler angle measurement with a curved transducer is shown in the image below. -
Page 12: Zerdine
Zerdine and the reliability of its acoustic characteristics from batch to batch. The formulation system established at CIRS is geared to independently control: • The speed of sound in the optimal range of 1510 to 1700 m/s. -
Page 13: Warranty
If you choose not to use a carrier that offers tracking or insure the product, you will be responsible for any loss or damage to the product during shipping. CIRS will not be responsible for lost or damaged return shipments. -
Page 14: Appendix 1: Conversion Of Flow Rate To Flow Velocity
APPENDIX 1: CONVERSION OF FLOW RATE TO FLOW VELOCITY When used with the supplied phantom, which has 3/16” ID tubing, the pump flow rate may be converted to flow velocity using the conversion chart supplied in the table below. The conversion from flow rate to average flow velocity is made by dividing the flow rate by the cross-sectional area of the tubing, which is 0.18 cm 3/16”...
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